CVE-2021-38604
In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix.
- Score
- CVSS 3.1 7.5 High
- Status
- Modified - cve@mitre.org
- Published
- 2021-08-12
- Last modified
- 2026-10-14
- Weaknesses
- CWE-476
Affected products
- Fedora (Fedoraproject)
- Glibc (Gnu)
- Communications Cloud Native Core Binding Support Function (Oracle)
- Communications Cloud Native Core Network Function Cloud Native Environment (Oracle)
- Communications Cloud Native Core Network Repository Function (Oracle)
- Communications Cloud Native Core Security Edge Protection Proxy (Oracle)
- Communications Cloud Native Core Unified Data Repository (Oracle)
- Enterprise Operations Monitor (Oracle)
- Simatic S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
- Simatic S7-1500 Cpu 1518f-4 Pndp Mfp (Siemens)
- Siplus S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
References
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=b805aebd42364fe696e417808a700fdb9800c9e8
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=4cc79c217744743077bf7a0ec5e0a4318f1e6641
- https://sourceware.org/bugzilla/show_bug.cgi?id=28213
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GYEXYM37RCJWJ6B5KQUYQI…
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://blog.tuxcare.com/cve/tuxcare-team-identifies-cve-2021-38604-a-new-vulnerability-in-glibc
- https://security.netapp.com/advisory/ntap-20210909-0005/
- https://security.gentoo.org/glsa/202208-24
- https://cert-portal.siemens.com/productcert/html/ssa-831302.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
